Model 7003M

Operator Manual

748223-K June 2002

4-3 HOLD MODE

 

• The last measured value is displayed

 

Refer to Figure 4-2 on page 4-7 and Table 4-6

 

• The last output value remains at the

 

below. In the HOLD mode:

 

 

• All instrument functions are locked

isolated current output connections

 

• Alarms and ON/OFF-Controllers are held

 

 

 

 

 

• All existing values are retained

 

in their last state

 

• The instrument stops responding to

• No keys are recognized except entry to

 

sensor signals

 

the diagnostic routing.

 

 

 

 

 

 

KEY

 

DISPLAY

WHAT HAPPENS

 

 

DISPLAY

 

Nothing

Nothing

 

 

ACK

 

Nothing

Nothing

 

 

ALARM 1

 

Nothing

Nothing

 

 

ALARM 2

 

Nothing

Nothing

 

 

UP ARROW

 

Nothing

Nothing

 

 

DOWN ARROW

 

Nothing

Nothing

 

 

CAL

 

Nothing

Nothing

 

 

ENTER

 

"run"

Drops back to RUN mode

 

 

DISPLAY + ACK

 

"d-4" "tSt"

Moves to DIAGNOSTIC mode

 

Table 4-6. HOLD Mode Key Functions

If the sensor cable must be disconnected, the instrument can be put in the HOLD mode, in which all existing signal levels and output current levels and output current levels are maintained. This may be useful to prevent disturbing an ON/OFF-control loop connected to the relay contacts.

1.Press the UP ARROW and DOWN ARROW at the same time to put the instrument on HOLD.

2.If the security is activated, enter the security identification (id) code and press ENTER to continue.

3.Hld, YES, flash briefly, then Hld flashes alternately with the last oxygen reading. The output signal will remain unchanged until the instrument returns to the RUN mode.

4.Press ENTER to return to the RUN mode, or continue with Section 4-4 Diagnostics Mode on page 4-8.

Rosemount Analytical Inc. A Division of Emerson Process Management

Calibration and Adjustments 4-5